Question

Упростить
(1-2b/a+2b):(2b-a/a+2b*(1+a/a-2b))

Answer 1

=(1-2b)*(a+2b)*(1+a)/(a+2b)*(2b-a)*(a-2b)=(1-2b)(1+a)/(2b-a)(a-2b)=(2b-1)(1+a)/(a-2b)²